Industrial 3D10UM Three Phase Molded Case Circuit Breaker

Altech 3D10UM is a UL 508-listed, three-pole molded‑case circuit breaker designed for three‑phase power distribution on a DIN rail in industrial panels. It is rated 10 A with a thermal‑magnetic trip (D‑Trip) for AC circuits up to 480Y/277 VAC at 50/60 Hz, with DC ratings documented for applicable configurations. The unit mounts on standard DIN rails and occupies 17.5 mm of width per pole (about 52.5 mm total for three poles). It delivers a 10 kA short‑circuit withstand rating and is part of Altech’s UM family of compact protection devices. Typical applications include AC motor starting, across‑the‑line and general‑use AC loads, ballast circuits, and incandescent lighting, making it suitable for industrial panels requiring reliable three‑phase protection with easy DIN‑rail mounting. The model designation 3D10UM specifies three poles with a 10 A rating, aligning with Altech’s range of small, UL‑listed circuit breakers intended for modular, space‑saving protection in demanding environments.